InChI=1/C13H16N4O/c1-18-11-4-2-3-10-13(11)15-9-12(16-10)17-7-5-14-6-8-17/h2-4,9,14H,5-8H2,1H3/p+1/fC13H17N4O/h14H/q+1 3F1BC574B01C8AE4